January 2015
Beginner
324 pages
7h 42m
English
Content preview from Arduino: A Quick-Start Guide, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Increasing Precision Using Floating-Point Numbers
According to the specification, the PING))) sensor is accurate for objects that are between 2 centimeters and 3 meters away. (By the way, the reason for this is the length of the pulse that is generated. Its minimum length is 115 microseconds, and the maximum length is 18.5 milliseconds.) With our current approach, we don’t fully benefit from its precision because all calculations are performed using integer values. We can only measure distances with an accuracy of a centimeter. To enter the millimeter range, we have to use floating-point numbers.
Normally it’s a good idea to use integer operations, because compared to regular computers the Arduino’s memory and CPU capacities are severely limited ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.